We use LXC on physically distributed Proxmox nodes. It let's us easily launch new VMs and migrate around when we need to. Nothing we have is very complicated bu

We use LXC on physically distributed Proxmox nodes. It let's us easily launch new VMs and migrate around when we need to. Nothing we have is very complicated but it works well. We use SaltStack to tear up special debug containers with a bunch of integrated tools. To update Saltstack just downloads the new container and creates a new container in Proxmox. I guess you could technically replace what we built with pure Docker but the Proxmox UI is a godsend for our on the ground support engineers who aren't the most technically savvy types. We started going down the Kubernetes route initially but it quickly turned into an absolute nightmare for us and we gave up quickly and we're all pretty strong with Kubernetes. I guess though when all you need is a few stateful services running the "dynamic scaling" of kubernetes is kind of pointless.